I am working to cleanse and improve existing data prior to adoption of a new system.

Records over 7 years old are virtually non existant.

I have a large number of properties in various different occupancy status.

It appears one property which is described as "freehold" is subject to a ground rent. Is this possible as my understanding was that freehold meant that the land and buildings on it were under common ownership?

There then appear to be a number of properties classed as leasehold. I would seek to slit these 3 ways viz

Long Leaseholds over 50 years where a premium has been paid for the rights to the property over the period of the lease. Such properties I would revalue on a 5 year cycle (i.e. 20% of estate revalued each year) and depreciate straight line over the lease period.

Short Leaseholds under 50 years to be treated as Long Leaseholds 

"Modern Leases" where no premium has been paid but there is an agreed term during which rental and service charges are paid. In this case we would only capitalise tennants improvements, not revalue them and depreciate over the primary lease period. Although this is a prudent approach is it correct and should you then revalue if a secondary period is taken up?

Some of the properties currently listed under the first two categories are subject to rental and some also service charges - yet I don't know if premiums were paid or whether the recorded costs are all tennants improvements - Can anyone offer guidance?